John Henderson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Mercer-County, New Jersey

Our Model Tree links this John Henderson across the 1920, 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 5-person household.

Age 39 b. ~1901 Male Head Born: Delaware Married

1940 Census Record Details

Census Year	1940
Location	Mercer-County, New Jersey
Surname	Henderson
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Delaware
1935 Residence (City)	LAWRENCE TWP.
1935 Residence (County)	MERCER
Additional Details
Occupation	Maintenance Man
Industry	Wire Mill
Class of Worker	PW
Hours Worked	40
Income (1939)	1000
Highest Grade	8
1935 Residence	Same place
Birth State	Delaware
Birth Country	United States
Birthplace (normalized)	delaware
Occupation	Maintenance Man
Township / Ward	Lawrence Twp
Est. Birth Year	~1901

Household Members

Census records only state relationship to the household head. Pairwise kinship is derived (~90–95% accurate), not recorded. Step/blended families and boarders can break it.

5 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to John	Age	Birth yr
John Henderson	Head	—	39	~1901
Charles Henderson	Son	—	2	~1938
John Henderson	Son	—	11	~1929
Robert Henderson	Son	—	7	~1933
Grace Henderson	Spouse	—	30	~1910

Census Appearances

1920

Mercer, New …

Other, age 18

Mercer, New Jersey · implied b. ~1902 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Henderson
Given Name	John W.
Relationship to Head	Step son
Sex	M
Color / Race	White
Age	18
Marital Status	Single
Birthplace	Delaware
Father's Birthplace	Delaware
Mother's Birthplace	Delaware
Occupation	Electrician
Industry	Rubber Mill
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Delaware
Birth Country	United States
Birthplace (normalized)	delaware

1930

Mercer, New …

Head, age 28

Mercer, New Jersey · implied b. ~1902 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Henderson
Given Name	John J.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	28
Marital Status	Married
Birthplace	Delaware
Age at First Marriage	26
Father's Birthplace	Delaware
Mother's Birthplace	Delaware
Occupation	electrician
Industry	wire mill
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	35.00
Radio Set	R
Birth State	Delaware
Birth Country	United States
Birthplace (normalized)	delaware

1940

Mercer-County, New …

Head, age 39

Mercer-County, New Jersey · implied b. ~1901 — 5 household members

Surname	Henderson
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	39
Marital Status	Married
Birthplace	Delaware
1935 Residence (City)	LAWRENCE TWP.
1935 Residence (County)	MERCER
Occupation	Maintenance Man
Industry	Wire Mill
Class of Worker	PW
Hours Worked	40
Income (1939)	1000
Highest Grade	8
1935 Residence	Same place
Birth State	Delaware
Birth Country	United States
Birthplace (normalized)	delaware

Model Tree

Linked across censuses

Our Model Tree links John Henderson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

John Henderson

Head · 1940 · age 39 · b. ~1901 · New Jersey

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Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Mercer-County, New Jersey Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02357-00374)

Line	Name	Age	Relation	Occupation	Birthplace
1	John Henderson THIS PERSON	39	Head	Maintenance Man	Delaware
2	Grace Henderson	30	Wife	—	New Jersey
3	John Henderson	11	Son	—	New Jersey
4	Robert Henderson	7	Son	—	New Jersey
5	Charles Henderson	2	Son	—	New Jersey
6	Joseph Debronzo	26	Head	Mason	New Jersey
7	Madeline Debronzo	24	Wife	—	New Jersey
8	John Debronzo	9	Son	—	New Jersey
9	Joseph Debronzo	6	Son	—	New Jersey
10	Mary Debronzo	4	Daughter	—	New Jersey
11	Ralph Debronzo	2	Son	—	New Jersey
12	Harold Daisley	44	Head	Roofer	New Jersey
13	Marjorie Daisley	34	Wife	Operator	New Jersey
14	Harold Daisley	17	Son	—	New Jersey
15	Gilbert Daisley	15	Son	—	New Jersey
16	Marjorie Daisley	13	Daughter	—	New Jersey
17	Betty Daisley	8	Daughter	—	New Jersey
18	Joseph Witkowski	23	Head	Shipping Clerk	New Jersey
19	Elizabeth Witkowski	22	Wife	—	New Jersey
20	Sarah Leggiero	34	Sister in law	Trimmer	Italy
21	Anthony Leggiero	11	Son	—	New Jersey
22	Michael Modica	26	Head	Painter	New Jersey
23	Antoinette Modica	26	Wife	Sewer	New Jersey
24	Josephine Modica	5	Daughter	—	New Jersey
25	Harry Young	67	Head	Watchman	Indiana
26	Anna Young	52	Wife	—	Penn
27	Anna Goodwin	20	Step child	Operator	Penn
28	Margaret Goodwin	17	Daughter	—	Penn
29	Charles Briggs	31	Head	Operator	New Jersey
30	Margaret Briggs	28	Wife	—	New Jersey
31	Charlotte Briggs	2	Daughter	—	New Jersey
32	Charles Kicinski	45	Head	Owner	Penn
33	Caroline Kicinski	43	Wife	—	Penn
34	Florence Kicinski	15	Daughter	—	New Jersey
35	Ted Kicinski	20	Son	Helper	New Jersey
36	James Watson	30	Head	Operator	New Jersey
37	Florence Watson	28	Wife	—	New Jersey
38	Madeline Watson	10	Daughter	—	New Jersey
39	Kenneth Watson	8	Son	—	New Jersey
40	Clara Watson	5	Daughter	—	New Jersey

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.

Source: National Archives and Records Administration (NARA)

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